The debug port runs on 3.3 V
The pins are accessible from the bottom side. Pinout according to Tag Connect footprint:
10 9 8 7 6
1 2 3 4 5
Fitting cable is an expensive Tag Connect TC2050-IDC-NL, for hands-free debugging the TC2050-CLIP is needed.
| Pin | Function | Comment |
|---|---|---|
| 1 | TX | 55 |
| 2 | RX | 57 |
| 3 | VCC | 3.3V |
| 4 | RST | 32 |
| 5 | GND | |
| 6 | ? | |
| 7 | TCK | 19 |
| 8 | TMS | 20 |
| 9 | SOP2 | 21 (indirect SOP0 35) |
| 10 | ? |
Grab your favourite USB-UART 3.3V interface, recommending those with DTR and RTS port to automate board reset + bootflag (SOP2). You may also use a CC3200 Launchpad, but then you will need to reset it by hand.
To be able to extract the firmware you will need to pull SOP2 high and reset the device.
Use cc3200tool to extract the firmware.
- Extract full firmware
cc3200tool -p /dev/ttyUSB2 --sop2 ~dtr --reset rts read_flash firmware.dmp - List files in FatFS
cc3200tool -p /dev/ttyUSB2 --sop2 ~dtr --reset rts list_filesystem - Extract the files you like
cc3200tool -p /dev/ttyUSB2 --sop2 ~dtr --reset rts read_file /sys/mcuimg.bin ./sys/mcuimg.bin